package com.health.mapp.utils;


import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;



/**
 * 二维码工具类
 * 
 */
public class QRCodeUtil {

	private static final String CHARSET = "utf-8";
	private static final String FORMAT_NAME = "PNG";
	// 二维码尺寸
	private static final int QRCODE_SIZE = 470;
	// LOGO宽度
	private static final int WIDTH = 80;
	// LOGO高度
	private static final int HEIGHT = 80;

	public static BufferedImage createImage(String content, String imgPath,
			boolean needCompress) throws Exception {
		Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
		hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
		hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
		//hints.put(EncodeHintType., 0);
		BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
				BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
		
		int width = QRCODE_SIZE;
		int height = QRCODE_SIZE;
		
		 //InputStream inStream = this.getClass().getResourceAsStream(configFile);
		//String pathtemp = "../resources/backgroud.png";  
		String pathtemp = "/backgroud.png";  
		BufferedImage image = ImageIO.read(new FileInputStream(pathtemp)); 

		for (int x = 0; x < width; x++) {
			
			for (int y = 0; y < height; y++) {
				
				if (x<QRCODE_SIZE&&y<QRCODE_SIZE) {
				image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
						: 0xFFFFFFFF);
				}
			}
		}
		
		if (imgPath == null || "".equals(imgPath)) {
			return image;
		}
		// 插入图片
		QRCodeUtil.insertImage(image, imgPath, needCompress);
		return image;
	}
	
	
	 /**
     * 生成条形码图片
     */
    public static void createBarCodeImg(String code, String barPath){
        try {

        	ZxingCodeParams codeParams = new ZxingCodeParams();
    		codeParams.setText(code);
            Map<EncodeHintType, Object> hints = getDecodeHintType(codeParams);
            BitMatrix bitMatrix = new MultiFormatWriter().encode(codeParams.getText(), BarcodeFormat.CODE_128, codeParams.getWidth(), codeParams.getHeight(), hints);
            File file = new File(barPath);
            if (!file.exists()){
                file.createNewFile();
            }
            BufferedImage image = new BufferedImage( codeParams.getWidth(), codeParams.getHeight(), BufferedImage.TYPE_INT_RGB);
            ImageIO.write(image, codeParams.getQrcodeFormat(), file);
            MatrixToImageWriter.writeToFile(bitMatrix, codeParams.getQrcodeFormat(), file);
        } catch (WriterException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    /**
     * 设置二维码的格式参数
     *
     * @return
     */
    public static Map<EncodeHintType, Object> getDecodeHintType(ZxingCodeParams codeParams)
    {
        // 用于设置QR二维码参数
        Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
        // 设置QR二维码的纠错级别（H为最高级别）具体级别信息
        hints.put(EncodeHintType.ERROR_CORRECTION, codeParams.getLevel());
      //  hints.put(EncodeHintType., codeParams.getMargin());
        // 设置编码方式
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        return hints;
    }
	
	public static BufferedImage createImage(String content, String imgPath,
			boolean needCompress,String pathtemp) throws Exception {
		Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
		hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
		hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
		//hints.put(EncodeHintType., 0);
		BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
				BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
		
		int width = QRCODE_SIZE;
		int height = QRCODE_SIZE;
		
		 //InputStream inStream = this.getClass().getResourceAsStream(configFile);
		//String pathtemp = "../resources/backgroud.png";  
		BufferedImage image = ImageIO.read(new FileInputStream(pathtemp)); 

		for (int x = 0; x < width; x++) {
			
			for (int y = 0; y < height; y++) {
				
				if (x<QRCODE_SIZE&&y<QRCODE_SIZE) {
				image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
						: 0xFFFFFFFF);
				}
			}
		}
		
		if (imgPath == null || "".equals(imgPath)) {
			return image;
		}
		// 插入图片
		QRCodeUtil.insertImage(image, imgPath, needCompress);
		return image;
	}

	/**
	 * 插入LOGO
	 * 
	 * @param source
	 *            二维码图片
	 * @param imgPath
	 *            LOGO图片地址
	 * @param needCompress
	 *            是否压缩
	 * @throws Exception
	 */
	private static void insertImage(BufferedImage source, String imgPath,
			boolean needCompress) throws Exception {
		File file = new File(imgPath);
		if (!file.exists()) {
			System.err.println(""+imgPath+"   该文件不存在！");
			return;
		}
		Image src = ImageIO.read(new File(imgPath));
		int width = src.getWidth(null);
		int height = src.getHeight(null);
		if (needCompress) { // 压缩LOGO
			if (width > WIDTH) {
				width = WIDTH;
			}
			if (height > HEIGHT) {
				height = HEIGHT;
			}
			Image image = src.getScaledInstance(width, height,
					Image.SCALE_SMOOTH);
			BufferedImage tag = new BufferedImage(width, height,
					BufferedImage.TYPE_INT_RGB);
			Graphics g = tag.getGraphics();
			g.drawImage(image, 0, 0, null); // 绘制缩小后的图
			g.dispose();
			src = image;
		}
		// 插入LOGO
		Graphics2D graph = source.createGraphics();
		int x = 320;
		int y = 225;
		graph.drawImage(src, x, y, width, height, null);
		Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
		graph.setStroke(new BasicStroke(3f));
		graph.draw(shape);
		graph.dispose();
	}

	/**
	 * 生成二维码(内嵌LOGO)
	 * 
	 * @param content
	 *            内容
	 * @param imgPath
	 *            LOGO地址
	 * @param destPath
	 *            存放目录
	 * @param needCompress
	 *            是否压缩LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath, String destPath,
			boolean needCompress) throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath,
				needCompress);
		mkdirs(destPath);
		//String file = new Random().nextInt(99999999)+".jpg";
		String file = "aa.jpg";
		ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
	}

	/**
	 * 当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
	 * @author lanyuan
	 * Email: mmm333zzz520@163.com
	 * @date 2013-12-11 上午10:16:36
	 * @param destPath 存放目录
	 */
	public static void mkdirs(String destPath) {
		File file =new File(destPath);    
		//当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
		if (!file.exists() && !file.isDirectory()) {
			file.mkdirs();
		}
	}

	/**
	 * 生成二维码(内嵌LOGO)
	 * 
	 * @param content
	 *            内容
	 * @param imgPath
	 *            LOGO地址
	 * @param destPath
	 *            存储地址
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath, String destPath)
			throws Exception {
		QRCodeUtil.encode(content, imgPath, destPath, false);
	}

	/**
	 * 生成二维码
	 * 
	 * @param content
	 *            内容
	 * @param destPath
	 *            存储地址
	 * @param needCompress
	 *            是否压缩LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String destPath,
			boolean needCompress) throws Exception {
		QRCodeUtil.encode(content, null, destPath, needCompress);
	}

	/**
	 * 生成二维码
	 * 
	 * @param content
	 *            内容
	 * @param destPath
	 *            存储地址
	 * @throws Exception
	 */
	public static void encode(String content, String destPath) throws Exception {
		QRCodeUtil.encode(content, null, destPath, false);
	}

	/**
	 * 生成二维码(内嵌LOGO)
	 * 
	 * @param content
	 *            内容
	 * @param imgPath
	 *            LOGO地址
	 * @param output
	 *            输出流
	 * @param needCompress
	 *            是否压缩LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath,
			OutputStream output, boolean needCompress) throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath,
				needCompress);
		ImageIO.write(image, FORMAT_NAME, output);
	}

	/**
	 * 生成二维码
	 * 
	 * @param content
	 *            内容
	 * @param output
	 *            输出流
	 * @throws Exception
	 */
	public static void encode(String content, OutputStream output)
			throws Exception {
		QRCodeUtil.encode(content, null, output, false);
	}
/*
	*//**
	 * 解析二维码
	 * 
	 * @param file
	 *            二维码图片
	 * @return
	 * @throws Exception
	 *//*
	public static String decode(File file) throws Exception {
		BufferedImage image;
		image = ImageIO.read(file);
		if (image == null) {
			return null;
		}
		BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(
				image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		Result result;
		Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
		hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
		result = new MultiFormatReader().decode(bitmap, hints);
		String resultStr = result.getText();
		return resultStr;
	}

	*//**
	 * 解析二维码
	 * 
	 * @param path
	 *            二维码图片地址
	 * @return
	 * @throws Exception
	 *//*
	public static String decode(String path) throws Exception {
		return QRCodeUtil.decode(new File(path));
	}

	public static void main(String[] args) throws Exception {
		String text = "user=admin";
		QRCodeUtil.encode(text, null, "c:/barcode", true);
	}*/
	
	/*public static void main(String[] args) throws Exception {
		String text = "user=admin";
		QRCodeUtil.encode(text, null, "c:/barcode", true);
	}*/
	
	
}
